Submission #643461

#	Time	Username	Problem	Language	Result	Execution time	Memory
643461		makanhulia	Zagonetka (COI18_zagonetka)	C++17	27 / 100	6 ms	208 KiB

zagonetka

#include <bits/stdc++.h>

using namespace std;

int a, b;
bool debug = false;

bool grad(vector<int>&v){
    return (v[a-1] < v[b-1]);
}

bool ask(vector<int>&v){
    cout << "query ";
    for(auto &x: v) cout << x << " ";
    cout << endl;
    bool ret; 
    if(debug) ret = grad(v);
    else cin >> ret;

    return ret;
}

void st1(int n){
    vector<int>v(n);
    for(int i = 0; i < n; i++) cin >> v[i];
    sort(v.begin(), v.end());
    vector<int>mini(n, 1e9), maxi(n, -1);

    do{
        if(ask(v)){
            if(v < mini) mini = v;
            if(v > maxi) maxi = v;
        }
    } while (next_permutation(v.begin(), v.end()));

    cout << "end" << endl;
    for(auto &x: mini) cout << x << " ";
    cout << endl;
    for(auto &x: maxi) cout << x << " ";
    cout << endl;
}

void st2(int n){
    vector<int>v(n);
    for(int i = 0; i < n; i++) cin >> v[i];
    sort(v.begin(), v.end());

    bool asc = ask(v);
    if(!asc) reverse(v.begin(), v.end());

    int a = -1, b = -1;
    for(int i = 0; i < n; i++){
        if(b != -1) break;
        for(int j = i + 1; j < n; j++){
            swap(v[i], v[j]);
            bool tmp = ask(v);
            swap(v[i], v[j]);

            if(!tmp){
                b = j;
                break;
            }   
        }
    }

    for(int i = b - 1; i >= 0; i--){
        swap(v[b], v[i]);
        bool tmp = ask(v);
        swap(v[b], v[i]);

        if(!tmp){
            a = i;
            break;
        }
    }

    cout << "end" << endl;
    sort(v.begin(), v.end());
    int ans[n];
    bool mark[n + 1];
    memset(ans, -1, sizeof(ans));
    memset(mark, 0, sizeof(mark));

    if(!asc){
        mark[v[a]] = mark[v[a] + 1] = true;
        ans[a] = v[a] + 1;
        ans[b] = v[a];
    }

    int j = 0;
    for(int i = 0; i < n; i++){
        if(ans[i] != -1) continue;
        while(mark[v[j]]) j++;

        mark[v[j]] = true;
        ans[i] = v[j];
        j++;
    }

    for(auto &x: ans) cout << x << " ";
    cout << endl;

    sort(v.begin(), v.end(), greater<int>());
    memset(ans, -1, sizeof(ans));
    memset(mark, 0, sizeof(mark));

    if(asc){
        mark[v[a]] = mark[v[a] - 1] = true;
        ans[a] = v[a] - 1;
        ans[b] = v[a];
    }

    j = 0;
    for(int i = 0; i < n; i++){
        if(ans[i] != -1) continue;
        while(mark[v[j]]) j++;

        mark[v[j]] = true;
        ans[i] = v[j];
        j++;
    }
    for(auto &x: ans) cout << x << " ";
    cout << endl;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n; cin >> n;
    if(debug) cin >> a >> b;
    if(n <= 6) st1(n);
    else st2(n);

    return 0;
}

• Subtask 1: 9 / 9
• Subtask 2: 18 / 18
• Subtask 3: 0 / 22
• Subtask 4: 0 / 51